diff --git a/src/core/Engine.js b/src/core/Engine.js
index 33e76b2..b549f66 100644
--- a/src/core/Engine.js
+++ b/src/core/Engine.js
@@ -160,6 +160,11 @@ var Body = require('../body/Body');
             broadphasePairs = allBodies;
         }
 
+        // clear all composite modified flags
+        if (world.isModified) {
+            Composite.setModified(world, false, false, true);
+        }
+
         // narrowphase pass: find actual collisions, then create or update collision pairs
         var collisions = broadphase.detector(broadphasePairs, engine);
 
@@ -205,10 +210,6 @@ var Body = require('../body/Body');
         // clear force buffers
         _bodiesClearForces(allBodies);
 
-        // clear all composite modified flags
-        if (world.isModified)
-            Composite.setModified(world, false, false, true);
-
         Events.trigger(engine, 'afterUpdate', event);
 
         return engine;